BACKGROUND: Overweight and obesity is becoming a public health concern in China. OBJECTIVE: We examined associated trends in sedentary behavior and body mass index (BMI) among school children and adolescents from seven diverse Chinese provinces from 1997 to 2004. METHOD: Sequential multiple regressions were conducted with combined cross-sectional data derived from the China Health and Nutrition Survey (N = 5,497) to assess relationships between sedentary behavior and BMI. RESULTS: Between 1997 and 2004, the amount of time children (6- to 11-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.14 h/day (p < 0.05), while the amount of time adolescents (12- to 18-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.50 h/day (p < 0.05). Studying before and after school and watching TV/videos each accounted for about half the increase in sedentary behavior. Both watching TV/videos and studying before and after school were significantly and positively associated with BMI in males, but not in females. CONCLUSION: With the growing amount of time Chinese school children and adolescents study outside of school and watch TV/videos, Chinese youth are increasingly likely to become more overweight unless population-based prevention actions are taken.
BACKGROUND: Overweight and obesity is becoming a public health concern in China. OBJECTIVE: We examined associated trends in sedentary behavior and body mass index (BMI) among school children and adolescents from seven diverse Chinese provinces from 1997 to 2004. METHOD: Sequential multiple regressions were conducted with combined cross-sectional data derived from the China Health and Nutrition Survey (N = 5,497) to assess relationships between sedentary behavior and BMI. RESULTS: Between 1997 and 2004, the amount of time children (6- to 11-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.14 h/day (p < 0.05), while the amount of time adolescents (12- to 18-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.50 h/day (p < 0.05). Studying before and after school and watching TV/videos each accounted for about half the increase in sedentary behavior. Both watching TV/videos and studying before and after school were significantly and positively associated with BMI in males, but not in females. CONCLUSION: With the growing amount of time Chinese school children and adolescents study outside of school and watch TV/videos, Chinese youth are increasingly likely to become more overweight unless population-based prevention actions are taken.
Authors: A G LeBlanc; P T Katzmarzyk; T V Barreira; S T Broyles; J-P Chaput; T S Church; M Fogelholm; D M Harrington; G Hu; R Kuriyan; A Kurpad; E V Lambert; C Maher; J Maia; V Matsudo; T Olds; V Onywera; O L Sarmiento; M Standage; C Tudor-Locke; P Zhao; M S Tremblay Journal: Int J Obes Suppl Date: 2015-12-08
Authors: Zhixiong Zhou; Shanshan Dong; Jun Yin; Quan Fu; Hong Ren; Zenong Yin Journal: Int J Environ Res Public Health Date: 2018-05-14 Impact factor: 3.390